Automatic telescopic adjusting mechanism

Abstract

The utility model discloses an automatic telescopic adjusting mechanism which comprises an upper shell, a lower support, a driving mechanism, a transmission bevel gear, a threaded telescopic rod and a threaded telescopic rod fixing block, a vertical channel is formed in the middle of the upper shell, a vertical through hole is formed in the center of the transmission bevel gear, a protruding block is arranged on the inner wall of the vertical through hole, the transmission bevel gear is rotationally arranged in the upper shell, and the lower support is arranged on the lower support. A vertical sliding groove is formed in the side wall of the threaded telescopic rod, the lower end of the threaded telescopic rod is inserted into the vertical channel and penetrates through the vertical through hole to the position below the upper shell, the protruding block is slidably clamped in the vertical sliding groove, the lower end of the threaded telescopic rod is rotationally connected with a lower support, and the upper end of the threaded telescopic rod is in threaded connection with the interior of a threaded telescopic rod fixing block. The driving mechanism drives the transmission bevel gear to rotate. The use height of the installation trolley can be adjusted through the threaded telescopic rod, the threaded telescopic rod can further drive the lower support to ascend to be higher than a moving mechanism of the installation trolley or an installation clamp, and interference in the moving process of the installation trolley is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting and adjusting devices, in particular to an automatic telescopic adjusting mechanism. Background Art

[0002] In the field of mechanical industry, when assembling parts and welding structural parts, it is usually necessary to consider the installation height of parts or structural parts.

[0003] Currently, the most common method for adjusting the installation height of components or structures is to use hydraulic cylinders to drive a mounting trolley or fixture to raise or lower it, thereby adjusting the components or structures to the desired height. However, the hydraulic cylinder's low drive adjustment accuracy makes it difficult to meet the installation requirements of components or structures, making its use time-consuming, labor-intensive, and inefficient.

[0004] Therefore, there is an urgent need for an automatic telescopic adjustment mechanism to solve the problem of adjusting the installation height of components or structural parts. Utility Model Content

[0005] The utility model aims at the deficiencies in the prior art and provides an automatic telescopic adjustment mechanism to solve the problem of adjusting the installation height of components or structural parts.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The cam is fixed to the upper shell body, and the cam is fixed to the lower shell body with a plurality of movable parts, and the movable part is fixed to the upper shell body.

[0008] To optimize the above technical solutions, specific measures taken also include:

[0009] Furthermore, the driving mechanism includes a servo motor and an output bevel gear. The side wall of the upper shell is provided with an opening for the output bevel gear to be inserted and meshed with the transmission bevel gear. The servo motor is fixed on the frame of the mounting trolley, and the servo motor is used to drive the output bevel gear to rotate.

[0010] Furthermore, the driving mechanism further includes a reducer, and the servo motor is connected to and drives the output bevel gear via the reducer.

[0011] Furthermore, the servo motor is connected to the reducer through a servo motor connecting frame, the output end of the servo motor is connected to the input end of the reducer through a coupling B, the output end of the reducer is connected to the rotating shaft at one end of the output bevel gear through a coupling A, and the tooth surface at the other end of the output bevel gear is used to engage the tooth surface of the transmission bevel gear.

[0012] Furthermore, a gearbox output flange is provided on the periphery of the output end of the reducer, and a transmission bevel gear lower bearing support is connected through the gearbox output flange. The output bevel gear shaft is rotatably connected to the side wall of the transmission bevel gear lower bearing support through a bearing C. The end of the output bevel gear shaft is located in the gearbox output flange and is connected to the output end of the reducer.

[0013] Furthermore, it also includes a lower bearing support for the transmission bevel gear, the center of the lower bearing support for the transmission bevel gear is provided with a circular hole passing through it from top to bottom, the bottom end of the upper shell is an opening, the lower bearing support for the transmission bevel gear can be sleeved on the outside of the threaded telescopic rod through the circular hole, and inserted into the interior of the upper shell from the bottom end opening of the upper shell, and the lower bearing support for the transmission bevel gear and the upper shell are detachably fixedly connected by a fastening structure; the upper end of the transmission bevel gear located inside the upper shell is rotatably connected to the inner wall of the upper shell through a bearing A, and the lower end of the transmission bevel gear located inside the upper shell is rotatably connected to the upper end of the lower bearing support for the transmission bevel gear through a bearing D.

[0014] Furthermore, it also includes a lower support cover plate, the center of the lower support cover plate is provided with a circular hole running through it from top to bottom, the lower end of the threaded telescopic rod is provided with a circle of expansion disc, the interior of the lower support is provided with an installation cavity, the upper end of the installation cavity is set as an opening, the expansion disc at the lower end of the threaded telescopic rod is rotatably set in the installation cavity, the lower support cover plate is sleeved on the threaded telescopic rod through the circular hole, and is located above the expansion disc, and is detachably fixed to the lower support through a fastening structure.

[0015] Furthermore, the upper end of the extension disc is rotatably connected to the lower end surface of the lower support cover plate through a bearing B, and the lower end of the extension disc is rotatably connected to the upper end surface of the mounting cavity of the lower support through another bearing B.

[0016] Furthermore, a floating roof is provided at the bottom of the installation cavity of the lower support, the top of the floating roof is higher than the bottom of the installation cavity and contacts the bottom center point of the expansion disc at the lower end of the threaded telescopic rod.

[0017] Furthermore, the fastening structure includes bolts and nuts.

[0018] The beneficial effects of the utility model are:

[0019] The utility model can fix the device to the lower end of the mounting trolley or the mounting fixture through a threaded telescopic rod fixing block, and fix the upper shell and the driving mechanism to the frame of the mounting trolley or the mounting fixture respectively, so that they do not participate in the adjustment movement, thereby ensuring the reliability of the driving structure and the stability of the driving.

[0020] When the utility model is in use, the driving mechanism drives the transmission bevel gear to rotate, and the transmission bevel gear is engaged with the vertical slide groove through the protrusion, driving the threaded telescopic rod to rotate. At the same time, the threaded telescopic rod is threadedly connected to the threaded telescopic rod fixing block, and when the threaded telescopic rod fixing block is relatively fixed, it moves up and down; at this time, the protrusion can slide up and down in the vertical slide groove, and the threaded telescopic rod drives the lower support connected to the lower end to retract or extend into the threaded telescopic rod fixing block, so that when the lower support supports the ground, the height of the installation trolley or the installation fixture can be adjusted according to the length of the threaded telescopic rod retracted or extended into the threaded telescopic rod fixing block.

[0021] When the utility model is not in use, the device is fixed to the lower end of the mounting trolley or the mounting fixture by the threaded telescopic rod fixing block. The threaded telescopic rod can drive the lower support to rise above the moving mechanism of the mounting trolley or the mounting fixture, such as above the bottom end of the wheel, thereby effectively avoiding interference during the movement of the mounting trolley or the mounting fixture.

[0022] The utility model has the advantages of simple structure, low production cost, convenient telescopic adjustment control, stable use, guiding significance for special tooling in production, and can help production reduce processing costs and improve processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view of the overall structure of an automatic telescopic adjustment mechanism proposed in the utility model;

[0024] Figure 2 for Figure 1 Schematic diagram of the cross section at AA in the middle;

[0025] Figure 3 This is a top view of the structure of an automatic telescopic adjustment mechanism proposed in the utility model;

[0026] Figure 4 This is a schematic diagram of the overall structure of an automatic telescopic adjustment mechanism proposed by the utility model.

[0027] Figure markings: 1-threaded telescopic rod, 2-threaded telescopic rod fixing block, 3-bearing A, 4-transmission bevel gear, 5-copper sleeve sliding bearing, 6-transmission bevel gear lower bearing support, 7-output bevel gear bearing seat, 8-bearing B, 9-coupling A, 10-gearbox output flange, 11-lower support cover, 12-upper housing, 13-reducer, 14-lower support, 15-servo motor, 16-bolts and nuts, 17-bearing C, 18-floating top, 19-coupling B, 20-servo motor connecting frame, 21-stop ring, 22-output bevel gear. DETAILED DESCRIPTION

[0028] The utility model is described in detail below with reference to the accompanying drawings.

[0029] As attached Figure 1 , Attachment Figure 2 and attached Figure 4 As shown, an automatic telescopic adjustment mechanism of an embodiment of the present invention includes an upper shell 12, a lower support 14, a driving mechanism, a transmission bevel gear 4, a threaded telescopic rod 1 and a threaded telescopic rod fixing block 2. A vertical channel is provided in the middle of the upper shell 12 for the threaded telescopic rod 1 to penetrate and move up and down. A vertical through-hole is provided in the center of the transmission bevel gear 4, and a protrusion is provided on the inner wall of the vertical through-hole. The transmission bevel gear 4 is rotatably arranged inside the upper shell 12, and a vertical slide groove is provided on the side wall of the threaded telescopic rod 1. The lower end of the threaded telescopic rod 1 is inserted into the vertical channel and passes through the vertical through-hole to the bottom of the upper shell 12, and the protrusion is slidably engaged in the vertical slide groove. The lower end of the threaded telescopic rod 1 is rotatably connected to the lower support 14, and the upper end of the threaded telescopic rod 1 is threadedly connected to the inside of the threaded telescopic rod fixing block 2. The driving mechanism is used to drive the transmission bevel gear 4 to rotate, and the threaded telescopic rod fixing block 2, the upper shell 12 and the driving mechanism are respectively fixed to the frame of the mounting trolley or the mounting fixture.

[0030] The present invention can fix the device to the lower end of the mounting trolley or mounting fixture via the threaded telescopic rod fixing block 2, and fix the upper housing 12 and the driving mechanism to the frame of the mounting trolley or mounting fixture respectively so that they do not participate in the adjustment movement, thereby ensuring the reliability of the driving structure and the stability of the drive. During use, the driving mechanism drives the transmission bevel gear 4 to rotate, and the transmission bevel gear 4 is engaged with the vertical slide groove by the protrusion, thereby driving the threaded telescopic rod 1 to rotate. At the same time, the threaded telescopic rod 1 is threadedly connected to the threaded telescopic rod fixing block 2 and moves up and down when the threaded telescopic rod fixing block 2 is relatively fixed. At this time, the protrusion can slide up and down in the vertical slide groove, and the threaded telescopic rod 1 drives the lower support 14 connected to the lower end to retract or extend into the threaded telescopic rod fixing block 2. Therefore, when the lower support 14 is supported on the ground, it can adjust the height of the mounting trolley or mounting fixture according to the length of the threaded telescopic rod 1 retracted or extended into the threaded telescopic rod fixing block 2. When not in use, the device is fixed to the lower end of the mounting trolley or mounting fixture by the threaded telescopic rod fixing block 2, and the threaded telescopic rod 1 can drive the lower support 14 to rise to a level higher than the moving mechanism of the mounting trolley or mounting fixture, such as higher than the bottom of the wheel. This can effectively avoid interference during the movement of the mounting trolley or mounting fixture, and can make it easier for the mounting trolley or mounting fixture loaded with parts or structural parts to perform convenient movement adjustment and height adjustment switching.

[0031] The connection arrangement between the protrusion and the vertical slide groove can ensure that the transmission bevel gear 4 does not affect the telescopic movement of the threaded telescopic rod 1 while driving the threaded telescopic rod 1 to rotate.

[0032] In another specific embodiment, the drive mechanism includes a servo motor 15 and an output bevel gear 22. The side wall of the upper housing 12 has an opening through which the output bevel gear 22 is inserted and meshes with the transmission bevel gear 4. The servo motor 15 is fixed to a mounting carriage or a frame of a mounting fixture and is used to drive the output bevel gear 22. In this way, during use, the drive mechanism can be easily assembled or disassembled from the upper housing 12 through the opening in the side wall of the upper housing 12, and different models of output bevel gears 22 can be easily replaced or selected.

[0033] In a further embodiment based on the above embodiment, the driving mechanism further includes a reducer 13, and the servo motor 15 is connected to and drives the output bevel gear 22 through the reducer 13. In this way, the reducer 13 can be used to reduce speed and increase torque.

[0034] As attached Figure 3As shown, specifically, the servo motor 15 is connected to the reducer 13 through the servo motor connecting frame 20, the output end of the servo motor 15 is connected to the input end of the reducer 13 through the coupling B19, and the output end of the reducer 13 is connected to the rotating shaft at one end of the output bevel gear 22 through the coupling A9, and the tooth surface at the other end of the output bevel gear 22 is used to engage the tooth surface of the transmission bevel gear 4.

[0035] In a further embodiment based on the above embodiment, a gearbox output flange 10 is provided on the periphery of the output end of the reducer 13, and the transmission bevel gear lower bearing support 6 is connected via the gearbox output flange 10. The rotating shaft of the output bevel gear 22 is rotationally connected to the side wall of the transmission bevel gear lower bearing support 6 via a bearing C17. The end of the rotating shaft of the output bevel gear 22 is located within the gearbox output flange 10 and connected to the output end of the reducer 13. Thus, the arrangement of the gearbox output flange 10 and the transmission bevel gear lower bearing support 6 provides a certain degree of protection for the connection. At the same time, the arrangement of the bearing C17 does not affect the rotational drive of the output bevel gear 22.

[0036] In this embodiment, a retaining ring 21 may be provided as needed at the connection between the rotating shaft of the output bevel gear 22 and the bearing C17 .

[0037] In another specific embodiment, the transmission bevel gear lower bearing support 6 is further provided. A circular hole is provided in the center of the transmission bevel gear lower bearing support 6, extending vertically therethrough. The bottom end of the upper housing 12 is open. The transmission bevel gear lower bearing support 6 can be positioned over the outer side of the threaded telescopic rod 1 through the circular hole and inserted into the interior of the upper housing 12 through the bottom opening. The transmission bevel gear lower bearing support 6 and the upper housing 12 are removably fixedly connected via a fastening structure 16. The upper end of the transmission bevel gear 4 within the upper housing 12 is rotationally connected to the inner wall of the upper housing 12 via a bearing A3, while the lower end of the transmission bevel gear 4 within the upper housing 12 is rotationally connected to the upper end of the transmission bevel gear lower bearing support 6 via a bearing D. This removable connection between the transmission bevel gear lower bearing support 6 and the upper housing 12 facilitates disassembly, assembly, and maintenance of the internal structure. Furthermore, the rotational connection of the transmission bevel gear 4 via the bearings A3 and D enhances the structural reliability and motion stability of the transmission bevel gear 4. In this embodiment, the bearings A3 and D can be plane bearings.

[0038] In this embodiment, the transmission bevel gear 4 can also be designed as shown in the attached Figure 2 As shown in the figure, a swivel is provided at the bottom, and correspondingly, a swivel groove is provided at the upper end of the lower bearing support 6 of the transmission bevel gear. The swivel is rotatably arranged in the swivel groove through the copper sleeve sliding bearing 5 to increase the stability of the structure.

[0039] In another specific embodiment, a lower support cover plate 11 is further included. A circular hole is provided in the center of the lower support cover plate 11 extending vertically therethrough. The lower end of the threaded telescopic rod 1 is provided with a circle of extension discs. The interior of the lower support 14 is provided with a mounting cavity, the upper end of which is open. The extension disc at the lower end of the threaded telescopic rod 1 is rotatably mounted in the mounting cavity. The lower support cover plate 11 is sleeved onto the threaded telescopic rod 1 through the circular hole and is positioned above the extension disc. The lower support cover plate 11 is detachably fixedly connected to the lower support 14 via a fastening structure 16. Thus, by rotatably mounting the extension disc in the mounting cavity, the rotational movement of the threaded telescopic rod 1 is not affected by the lower support 14 and can effectively drive the movement of the lower support 14.

[0040] In a further embodiment based on the above, the upper end of the expansion disc is rotatably connected to the lower end surface of the lower support cover plate 11 via a bearing B8, while the lower end of the expansion disc is rotatably connected to the upper end surface of the mounting cavity of the lower support 14 via another bearing B8. This ensures the stability of the rotational connection. Bearing B8 can be a plane bearing.

[0041] In a further embodiment based on the above embodiment, a floating roof 18 is provided at the bottom of the mounting cavity of the lower support 14. The top of the floating roof 18 is higher than the bottom of the mounting cavity and contacts the bottom center point of the extended disc at the lower end of the threaded telescopic rod 1. In this way, during use, the floating roof 18 can support the bottom of the threaded telescopic rod 1 while not affecting its rotation.

[0042] The aforementioned fastening structure 16 includes bolts and nuts.

[0043] The utility model has the advantages of simple structure, low production cost, convenient telescopic adjustment control, stable use, guiding significance for special tooling in production, and can help production reduce processing costs and improve processing efficiency.

[0044] It should be noted that the terms such as "upper", "lower", "left", "right", "front", "back", etc. used in the utility model are only for the convenience of description and are not used to limit the scope of implementation of the utility model. Changes or adjustments to their relative relationships should also be regarded as the scope of implementation of the utility model without substantially changing the technical content.

[0045] The above are only preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be pointed out that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should be considered within the scope of protection of the present invention.

Claims

1. An automatic telescopic adjustment mechanism, characterized in that: The invention comprises an upper shell (12), a lower support (14), a driving mechanism, a transmission bevel gear (4), a threaded telescopic rod (1) and a threaded telescopic rod fixing block (2), wherein a vertical channel is provided in the middle of the upper shell (12) for the threaded telescopic rod (1) to penetrate and move up and down, a vertical through hole is provided in the center of the transmission bevel gear (4), and a protrusion is provided on the inner wall of the vertical through hole, the transmission bevel gear (4) is rotatably arranged inside the upper shell (12), and a vertical slide groove is provided on the side wall of the threaded telescopic rod (1) The lower end of the threaded telescopic rod (1) is inserted into the vertical channel and passes through the vertical through hole to the bottom of the upper shell (12), and the protrusion is slidably engaged in the vertical slide groove. The lower end of the threaded telescopic rod (1) is rotatably connected to the lower support (14). The upper end of the threaded telescopic rod (1) is threadedly connected to the inside of the threaded telescopic rod fixing block (2). The driving mechanism is used to drive the transmission bevel gear (4) to rotate. The threaded telescopic rod fixing block (2), the upper shell (12) and the driving mechanism are respectively fixed to the frame of the mounting trolley.

2. The automatic telescopic adjustment mechanism according to claim 1, characterized in that: The driving mechanism comprises a servo motor (15) and an output bevel gear (22). The side wall of the upper housing (12) is provided with an opening for the output bevel gear (22) to be inserted and meshed with the transmission bevel gear (4). The servo motor (15) is fixed on a frame for mounting the trolley. The servo motor (15) is used to drive the output bevel gear (22) to rotate.

3. The automatic telescopic adjustment mechanism according to claim 2, characterized in that: The driving mechanism further includes a reducer (13), and the servo motor (15) is connected to and drives the output bevel gear (22) via the reducer (13).

4. The automatic telescopic adjustment mechanism according to claim 3, characterized in that: The servo motor (15) is connected to the reducer (13) via a servo motor connecting frame (20), the output end of the servo motor (15) is connected to the input end of the reducer (13) via a coupling B (19), the output end of the reducer (13) is connected to the rotating shaft at one end of the output bevel gear (22) via a coupling A (9), and the tooth surface at the other end of the output bevel gear (22) is used to mesh with the tooth surface of the transmission bevel gear (4).

5. The automatic telescopic adjustment mechanism according to claim 4, characterized in that: The output end of the reducer (13) is provided with a gearbox output flange (10) on the periphery thereof, and is connected to a transmission bevel gear lower bearing support (6) via the gearbox output flange (10). The output bevel gear (22) rotating shaft is rotatably connected to the side wall of the transmission bevel gear lower bearing support (6) via a bearing C (17). The end of the output bevel gear (22) rotating shaft is located within the gearbox output flange (10) and is connected to the output end of the reducer (13).

6. The automatic telescopic adjustment mechanism according to claim 1, characterized in that: The invention also includes a transmission bevel gear lower bearing support (6), wherein the center of the transmission bevel gear lower bearing support (6) is provided with a circular hole extending upward and downward, and the bottom end of the upper shell (12) is open. The transmission bevel gear lower bearing support (6) can be sleeved on the outer side of the threaded telescopic rod (1) through the circular hole and inserted into the interior of the upper shell (12) from the bottom end opening of the upper shell (12). The transmission bevel gear lower bearing support (6) and the upper shell (12) are detachably fixedly connected by a fastening structure (16); the upper end of the transmission bevel gear (4) located inside the upper shell (12) is rotatably connected to the inner wall of the upper shell (12) through a bearing A (3), and the lower end of the transmission bevel gear (4) located inside the upper shell (12) is rotatably connected to the upper end of the transmission bevel gear lower bearing support (6) through a bearing D.

7. The automatic telescopic adjustment mechanism according to claim 1, characterized in that: The invention also includes a lower support cover plate (11), wherein a circular hole is provided in the center of the lower support cover plate (11) and passes through the lower end thereof, and a circle of expansion discs is provided at the lower end of the threaded telescopic rod (1). An installation cavity is provided inside the lower support (14), and the upper end of the installation cavity is set as an opening. The expansion disc at the lower end of the threaded telescopic rod (1) is rotatably set in the installation cavity. The lower support cover plate (11) is sleeved on the threaded telescopic rod (1) through the circular hole and is located above the expansion disc. The lower support cover plate (11) is detachably fixedly connected to the lower support (14) through a fastening structure (16).

8. The automatic telescopic adjustment mechanism according to claim 7, characterized in that: The upper end of the expansion disc is rotatably connected to the lower end surface of the lower support cover plate (11) through a bearing B (8), and the lower end of the expansion disc is rotatably connected to the upper end surface of the mounting cavity of the lower support (14) through another bearing B (8).

9. The automatic telescopic adjustment mechanism according to claim 7, characterized in that: A floating roof (18) is provided at the bottom of the installation cavity of the lower support (14), the top of the floating roof (18) being higher than the bottom of the installation cavity and in contact with the bottom center point of the expansion disc at the lower end of the threaded telescopic rod (1).

10. The automatic telescopic adjustment mechanism according to claim 6 or 7, characterized in that: The fastening structure (16) comprises a bolt and a nut.

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